I was wondering if there will be any expansion of the topic of Tharizdun and the Abyss?

CommentHey Mike, I was wondering if there will be any more expansion of the topic of Tharizdun and his role in creating the Abyss? His lore is one of the most fascinating parts of the D&D universe yet I can find very little information regarding him.
It’s a little tricky, because that’s world material that’s applicable to the Dawn War setting, rather than D&D as a whole. I expect that if we do more with that world, we’d go into a little more detail on him and his background and plans. from discussion AMA: Mike Mearls, Co-Designer of D&D 5, Head of D&D R&D.